A GFRP non-magnetic square pile mosaic casting method

Abstract

The invention discloses a GFRP non-magnetic square pile mosaic casting method, which relates to the field of concrete pile manufacturing. The technical scheme is as follows: S1: supporting a plurality of groups of square pile templates at intervals in the site; S2: reinforcing the square pile template; S3: placing a plurality of non-magnetic pads in the square pile template; S4: hoisting GFRP bars into the mold; S5: pouring the first batch of concrete in the square pile template; S6: after the concrete solidifies, removing the square pile template; S7: laying a plastic film between two adjacent forming piles; S8: placing a plurality of non-magnetic pads between two adjacent forming piles; S9: hoisting GFRP bars between two forming piles; S10: pouring the second batch of concrete between the two forming piles; S11: after the concrete solidifies, using a hoisting device to hoist the formed square piles. The invention has the beneficial effects of improving the construction safety factor, shortening the construction period, and playing a good role in saving labor, saving site, and shortening the template turnover cycle.

Description

Technical Field

[0001] The invention relates to the field of concrete pile manufacturing, and in particular to a GFRP non-magnetic square pile inlay casting method. Background Art

[0002] The "GFRP" in GFRP non-magnetic square pile refers to "Glass Fiber Reinforced Polymer", which is a composite material with glass fiber as reinforcement material and polymer as matrix.

[0003] Non-magnetic square piles usually refer to square piles with no or weak magnetism. This type of pile has advantages in some places that are sensitive to magnetism or in projects with special requirements. For example, in environments where there are electronic equipment, precision instruments, etc. that are sensitive to magnetic interference, the use of non-magnetic square piles can avoid interference with related equipment and instruments.

[0004] Currently, industrial square pile processing mostly uses steel formwork, which causes serious magnetic pollution. Therefore, non-magnetic square piles need to be prefabricated on site using wooden formwork and special low-magnetic concrete.

[0005] Since a large number of square piles are needed in the project, a large site is required for pile making, and a large number of formworks are needed during use, which not only increases the construction cost, but also puts high demands on the storage, management and maintenance of the formworks. Summary of the invention

[0006] In view of the above technical problems, the present invention provides a GFRP non-magnetic square pile embedded casting method.

[0007] The technical solution includes the following steps:

[0008] S1: Several groups of square pile formwork are set up at intervals on the site;

[0009] S2: Reinforce the pile formwork;

[0010] S3: Place several non-magnetic spacers in the square pile formwork;

[0011] S4: hoisting GFRP bars into the mold;

[0012] S5: Pour the first batch of concrete into the square pile formwork;

[0013] S6: After the concrete solidifies, remove the square pile formwork;

[0014] S7: laying plastic film between two adjacent forming piles;

[0015] S8: placing a number of non-magnetic spacers between two adjacent forming piles;

[0016] S9: hoist the GFRP reinforcement between two formed piles;

[0017] S10: pouring the second batch of concrete between the two formed piles;

[0018] S11: After the concrete solidifies, use lifting equipment to lift the formed square piles.

[0019] Preferably, step S1 further comprises:

[0020] The distance between the same sides of two adjacent sets of square pile formworks is equal to the distance between the inner walls on both sides of the same set of square pile formworks.

[0021] Preferably, step S1 further includes:

[0022] Different end templates are provided according to the different shapes of the two ends of the square pile, and the end templates are fixed to the square pile templates when in use.

[0023] Preferably, step S2 further includes:

[0024] A plurality of groups of diagonal braces are arranged on the two groups of square pile formworks located at the two ends. The diagonal braces are located outside the square pile formworks and are fixed on the ground of the site.

[0025] Preferably, step S2 further includes:

[0026] Two adjacent square pile templates are supported and fixed by a plurality of support rods.

[0027] Preferably, step S3 further includes:

[0028] Before placing the non-magnetic pads, a release agent must be applied to the surface of the square pile formwork and the end formwork.

[0029] Preferably, step S7 further includes:

[0030] End formwork is respectively arranged at both ends of the gap between two adjacent formed piles, and the arrangement position of the end formwork is opposite to the arrangement position of the end formwork during the primary pouring.

[0031] Preferably, step S7 further includes:

[0032] The two sides of the plastic film are turned outward 10 cm from the body of the formed pile and fixed to the upper surfaces of the formed piles on both sides.

[0033] Preferably, step S8 further includes:

[0034] Before placing the non-magnetic pads, apply a release agent on the plastic film and the surface of the end template.

[0035] The technical solution provided by the embodiment of the present invention has the beneficial effects of improving the construction safety factor, shortening the construction period, saving labor, saving space, shortening the template turnover cycle, and reducing construction costs. It has the characteristics of simple structure, safe and convenient construction, and time and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the first batch of concrete pouring process according to an embodiment of the present invention.

[0037] Figure 2 This is a cross-sectional view of the first batch of concrete pouring process according to an embodiment of the present invention.

[0038] Figure 3 Schematic diagram of the second batch of concrete pouring process according to an embodiment of the present invention.

[0039] Figure 4 It is a cross-sectional view of the second batch of concrete pouring process according to an embodiment of the present invention.

[0040] Among them, the accompanying drawings are marked as: 1. square pile formwork; 2. support rod; 3. diagonal brace; 4. first batch of concrete pouring; 5. formed piles; 6. second batch of concrete pouring. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0045] Example 1

[0046] See also Figures 1 to 4 The present invention provides a GFRP non-magnetic square pile mosaic casting method, comprising the following steps:

[0047] S1: Several groups of square pile formwork 1 are set up at intervals in the site;

[0048] S2: Reinforce the pile formwork 1;

[0049] S3: placing a number of non-magnetic pads in the square pile template 1;

[0050] S4: hoisting GFRP bars into the mold;

[0051] S5: pouring the first batch of concrete 4 in the square pile formwork 1;

[0052] S6: After the concrete solidifies, remove the square pile formwork 1;

[0053] S7: Laying a plastic film between two adjacent forming piles 5;

[0054] S8: placing a number of non-magnetic spacers between two adjacent forming piles 5;

[0055] S9: hoist the GFRP reinforcement between the two formed piles 5;

[0056] S10: pouring a second batch of concrete 6 between two formed piles 5;

[0057] S11: After the concrete solidifies, use lifting equipment to lift the formed square piles.

[0058] Step S1 also includes:

[0059] The spacing between the same sides of two adjacent groups of square pile formworks 1 is equal to the spacing between the inner walls on both sides of the same group of square pile formworks 1.

[0060] The consistency of spacing makes the square pile construction process more standardized and regularized, and can make the size of the square piles of the first pouring and the second pouring consistent, which not only helps to reduce errors and deviations in construction and improve the accuracy and quality of square pile forming, but also in the subsequent construction links, such as the installation and splicing of square piles, due to the consistency of size, it can greatly improve work efficiency and reduce the adjustment and correction work caused by size differences. At the same time, square piles with consistent sizes perform better in terms of bearing capacity and stability, can better meet the requirements of engineering design, and effectively ensure the safety and reliability of the project. In addition, standardized and normalized construction processes and consistent square pile sizes are also conducive to reducing construction costs, reducing material waste and unnecessary investment in manpower.

[0061] Step S1 also includes:

[0062] Different end templates are provided according to the different shapes of the two ends of the square pile, and the end templates are fixed to the square pile template 1 when in use.

[0063] This targeted design can ensure that the shape and size of the square pile ends accurately meet the project requirements, avoiding problems such as irregular ends and dimensional deviations. At the same time, through a firm fixing method, the overall stability of the formwork combination during the construction process can be enhanced, effectively resisting the lateral pressure generated during concrete pouring, and preventing the formwork from deforming or shifting, thereby ensuring the quality and accuracy of square pile pouring. In addition, different end formwork designs can also improve the flexibility and adaptability of construction, meet the special requirements of the square pile ends under various complex engineering conditions, and provide a strong guarantee for the smooth progress of the project.

[0064] Step S2 also includes:

[0065] A plurality of groups of diagonal braces 3 are arranged on the two groups of square pile formworks 1 at the two ends. The diagonal braces 3 are located outside the square pile formworks 1 and are fixed on the ground of the site.

[0066] The main function of the diagonal brace 3 is to provide a stable support and constraint for the square pile formwork 1, to prevent the formwork from displacement, deformation or tilting during the construction process such as pouring concrete, so as to ensure that the shape and size of the pile foundation meet the design requirements and improve the construction quality of the pile foundation. At the same time, the diagonal brace 3 can effectively disperse the lateral pressure on the formwork, enhance the overall stability of the formwork, reduce the risk of damage or collapse of the formwork due to external forces, and ensure the safety and smooth progress of the construction process.

[0067] Step S2 also includes:

[0068] Two adjacent square pile templates 1 are supported and fixed by a plurality of support rods 2 .

[0069] The support rods 2 can be placed according to the actual needs of the site, and are placed at the upper and lower ends of the square pile formwork 1 respectively. Through the design of the support rods 2, no additional support structure is required on the inner square pile formwork 1, which saves time and effort and is also convenient for later demoulding;

[0070] Furthermore, a plurality of cross bars are arranged on the upper part of all the square pile formworks 1 for fixing, so as to further enhance the supporting effect of the square pile formworks 1 .

[0071] Step S3 also includes:

[0072] Before placing the non-magnetic pads, a release agent needs to be applied to the surface of the square pile formwork 1 and the end formwork.

[0073] Non-magnetic pads are pads used in concrete pouring and are usually non-magnetic.

[0074] Able to ensure the accurate position of steel bars: can effectively fix the steel bars to prevent them from shifting during concrete pouring, and ensure that the thickness of the concrete cover of the steel bars meets the design requirements.

[0075] Good compressive performance: It has sufficient strength, is not easy to break, and can withstand the pressure during concrete pouring.

[0076] During concrete pouring, the main purpose of placing pads is to ensure that the steel bars have sufficient concrete cover. The functions of the concrete cover include maintaining the durability of the structure and preventing the steel bars from rusting; providing anchoring force for the steel bars so that the steel bars and concrete are stressed together; and preventing moisture and water from penetrating, avoiding corrosion of the steel bars and damaging the concrete.

[0077] Release agents can form a separation film between concrete and formwork, reducing the adhesion between the two. The active substances in the release agent can react with the concrete surface to form a layer of low surface tension substances, thereby separating the concrete from the mold. In addition, the release agent can also fill the microscopic pores on the concrete surface to form a protective layer, improving the finish and overall aesthetics of the concrete surface.

[0078] Step S7 also includes:

[0079] End formwork is respectively arranged at both ends of the gap between two adjacent forming piles 5, and the arrangement position of the end formwork is opposite to the arrangement position of the end formwork during the primary pouring.

[0080] The formed pile 5 is used as the template for the second pouring. This approach has many advantages:

[0081] First of all, it can significantly save the input of formwork materials, reduce construction costs, reduce the process of formwork installation and removal, greatly improve construction efficiency and shorten the construction period.

[0082] Secondly, the size and shape of the formed pile 5 are relatively stable and accurate, which can ensure the fit and consistency between the second pouring part and the formed part, thereby improving the overall construction quality.

[0083] The end formwork is fixed to the formed square piles during installation, and can also be fixed to the ground using a supporting structure to improve the overall stability of the end formwork during construction, effectively resist the lateral pressure generated during concrete pouring, and prevent the formwork from deforming or shifting, thereby ensuring the quality and accuracy of square pile pouring.

[0084] This design provides clear boundaries and supports for secondary pouring, facilitates construction operations, and helps ensure construction quality.

[0085] Step S7 also includes:

[0086] The two sides of the plastic film are turned outwards 10 cm from the pile body of the forming pile 5 and fixed to the upper surface of the forming pile 5 on both sides.

[0087] The main function of the plastic film is isolation and waterproofing. It can effectively prevent the penetration and loss of water during the concrete pouring process, ensure the stability of the water-cement ratio of the concrete, and thus ensure the strength and quality of the concrete. At the same time, the plastic film can also play an isolation role to prevent the cast-in-place concrete from adhering to the adjacent formed piles 5, affecting the later lifting of the square piles.

[0088] The two sides of the plastic film are turned outward by 10 cm from the body of the formed pile 5 and are fixed to the upper surfaces of the formed piles 5 on both sides. The effects and advantages of this are: on the one hand, it can better prevent moisture from seeping out from the sides and enhance the waterproof effect; on the other hand, the turned-out part is fixed to the upper surface of the formed pile 5, which can improve the stability and sealing of the plastic film and avoid the displacement or falling off of the plastic film during the construction process, thereby ensuring the quality and molding effect of the concrete during the entire construction process. In addition, the 10 cm turned-out part can also play a certain protective role on the body of the formed pile 5 and reduce the pollution and damage to the pile body during the concrete pouring process.

[0089] Step S8 also includes:

[0090] Before placing the non-magnetic pads, apply a release agent on the plastic film and the surface of the end template.

[0091] Release agents can form a separation film between concrete and film or formwork, reducing the adhesion between the two. The active substances in the release agent can react with the concrete surface to form a layer of low surface tension material, thereby separating the concrete from the mold. In addition, the release agent can also fill the microscopic pores on the concrete surface to form a protective layer, improving the finish and overall aesthetics of the concrete surface.

[0092] When the present invention is used, firstly, a square pile formwork 1 is set up and reinforced. A plurality of diagonal braces 3 are arranged on the two groups of square pile formworks 1 at the two ends, and the diagonal braces 3 are located outside the square pile formworks 1 and fixed on the ground of the site. Two adjacent square pile formworks 1 are supported and fixed by a plurality of support rods 2, and a plurality of cross bars are arranged on the upper part of all square pile formworks 1 for further fixing. A plurality of non-magnetic pads are placed in the square pile formworks 1. Before placement, a release agent is applied to the surface of the square pile formworks 1 and the end formworks.

[0093] Lifting GFRP bars into the mold.

[0094] The first batch of concrete pouring 4 is carried out in the square pile formwork 1.

[0095] After the concrete solidifies, remove the square pile formwork 1.

[0096] A plastic film is laid between two adjacent forming piles 5, and both sides of the plastic film are turned outwards 10 cm from the forming pile 5 body and fixed to the upper surfaces of the forming piles on both sides.

[0097] A number of non-magnetic spacers are placed between two adjacent forming piles 5. Before placement, a release agent is applied to the plastic film and the surface of the end template.

[0098] Lift the GFRP reinforcement between the two formed piles 5.

[0099] The second batch of concrete pouring 6 is performed between two formed piles 5. Before pouring, end templates are respectively set at both ends of the gap between two adjacent formed piles 5. The setting position of the end template is opposite to the setting position of the end template during the first pouring. The end template is fixed to the formed square piles during installation, and is also fixed to the ground of the site using a supporting structure.

[0100] After the concrete solidifies, use lifting equipment to lift the formed square piles.

[0101] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A GFRP non-magnetic square pile mosaic casting method, characterized in that: The following steps are involved: S1: Several sets of square pile formwork (1) are set up at intervals on the site; S2: Reinforce the pile formwork (1); S3: placing a number of non-magnetic spacers in the square pile template (1); S4: hoisting GFRP bars into the mold; S5: pouring the first batch of concrete into the square pile formwork (1) (4); S6: After the concrete solidifies, remove the square pile formwork (1); S7: laying a plastic film between two adjacent shaped piles (5); S8: placing a plurality of non-magnetic spacers between two adjacent formed piles (5); S9: hoisting the GFRP reinforcement between the two formed piles (5); S10: pouring a second batch of concrete (6) between the two formed piles (5); S11: After the concrete solidifies, use lifting equipment to lift the formed square piles.

2. The GFRP non-magnetic square pile mosaic casting method according to claim 1, characterized in that: Step S1 also includes: The spacing between the opposite sides of two adjacent groups of square pile templates (1) is equal to the spacing between the inner walls on both sides of the same group of square pile templates (1).

3. The GFRP non-magnetic square pile mosaic casting method according to claim 2, characterized in that: Step S1 also includes: Different end templates are provided according to the different shapes of the two ends of the square pile, and the end templates are fixed to the square pile template (1) when in use.

4. The GFRP non-magnetic square pile mosaic casting method according to claim 2, characterized in that: Step S2 also includes: A plurality of groups of diagonal braces (3) are arranged on two groups of square pile templates (1) located at two ends, wherein the diagonal braces (3) are located outside the square pile templates (1), and the diagonal braces (3) are fixed on the ground of the site.

5. The GFRP non-magnetic square pile mosaic casting method according to claim 2, characterized in that: Step S2 also includes: Two adjacent square pile templates (1) are supported and fixed by a plurality of support rods (2).

6. The GFRP non-magnetic square pile mosaic casting method according to claim 3, characterized in that: Step S3 also includes: Before placing the non-magnetic pads, a release agent must be applied to the surface of the square pile formwork (1) and the end formwork.

7. The GFRP non-magnetic square pile mosaic casting method according to claim 3, characterized in that: Step S7 also includes: End formwork is respectively arranged at both ends of the gap between two adjacent formed piles (5), and the arrangement position of the end formwork is opposite to the arrangement position of the end formwork during the primary pouring.

8. The GFRP non-magnetic square pile mosaic casting method according to claim 7, characterized in that: Step S7 also includes: The two sides of the plastic film are turned outwards 10 cm from the pile body of the formed pile (5) and fixed to the upper surface of the formed pile (5) on both sides.

9. The GFRP non-magnetic square pile mosaic casting method according to claim 8, characterized in that: Step S8 also includes: Before placing the non-magnetic pads, apply a release agent on the plastic film and the surface of the end template.

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